This device is powered by the Raspberry Pi PICO W Dev Board, allowing us to connect it to the internet. We created a webapp that allows users to enter any message, which is subsequently translated and outputted via the four 5mm LEDs linked to the Raspberry Pi pico W.

Furthermore, we have included a mechanical switch on this device that allows us to manually enter the morse code.

We designed the 3D model of Morse master in Fusion 360, borrowing inspiration from real Morse Key devices used to type Morse code. The idea here was to create a device that could be easily 3D printed and assembled.

Using one of our previously designed Raspberry PI PICO Expansion board PCB from a previous project, we used the custom board to create a simple Raspberry Pi PICO W and 5mm LED setup that would be used to display Morse code via RED LEDs.

MORSE CODE—History and Facts

The Morse code was created in the early 1830s by Samuel Morse, an American artist and inventor, and his collaborator Alfred Vail. It was initially developed as a way to send communications over large distances using the telegraph, a revolutionary communication instrument at the time.

The first version, known as "American Morse Code," employed dots and dashes to represent letters, numerals, and punctuation.

In 1851, a more standardized form known as the "International Morse Code" was established to incorporate non-English characters and diacritical markings, making it appropriate for global use. This form became the universal norm, and it is still acknowledged today.

The Morse key, also referred to as a telegraph key, was a device for manually transmitting Morse code signals via telegraph lines. It consisted of a lever that could be depressed to complete an electrical circuit, letting current to flow and provide a signal. Operators would press the key to create short signals (dots) and hold it down for long signals (dashes). These messages were sent as electrical pulses across telegraph cables to a receiver, where they were decoded into letters, numbers, and symbols.

The Morse key required aptitude and precision since operators had to keep consistent timing for dots, dashes, and gaps between characters and sentences. Experienced telegraphers may convey messages at astounding rates, generally measured in words per minute. The device was widely employed in communication systems, particularly in railways, maritime operations, and military settings, where it played an important role in transmitting critical information rapidly and reliably. Over time, the Morse key came to represent early telecommunications and the era's innovation.

DESIGN

We modeled our design after the Morse key, creating an enclosure that holds the Pico W circuit within; this comprises of a main body and a lid, to which we have attached a lever holder.

We included a lever alongside the Lever holder, and on one side of the lever, we included a knob similar to the one found on a Morse key, which allows the user to correctly grip the lever and operate the device.

A mechanical Blue Switch has been added to the Lid part, and the Lever is positioned above the Mechanical Switch; when the lever is pressed down, the switch toggles, and a switch press is registered by the PICO W.

To hold the mechanical switch in place, we built a square opening to the lid; the mechanical switch slides into this slot and is kept in place with two locks on its body. These two locks enabled us to securely hold the switch in place on the lid section.

The circuit is mounted inside the main body and held in place with four M2 screws, each with its own screw boss.

Regarding the design of the lid section and main body assembly, we have added four screw holes in each corner, as well as four screw bosses next to each screw hole. We'll be using four M2 screws here as well.

To secure the lever to the lever holder, we just use a Long 30mm M3 Bolt.

Our design follows the design language of prior Morse Keys...